Message ID | 20201227174938.27369-5-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | 7ce40dde03ea56684f2cb6b40991a90bc38c3ad9 |
Headers | show |
Series | [FFmpeg-devel,1/6] avformat/mxfdec: Do not clear arrays in mxf_read_index_entry_array() | expand |
Context | Check | Description |
---|---|---|
andriy/x86_make | success | Make finished |
andriy/x86_make_fate | success | Make fate finished |
andriy/PPC64_make | success | Make finished |
andriy/PPC64_make_fate | success | Make fate finished |
On Sun, Dec 27, 2020 at 06:49:37PM +0100, Michael Niedermayer wrote: > Fixes: signed integer overflow: -210824 * 16384 cannot be represented in type 'int' > Fixes: 28670/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5682310846480384 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> will apply [...]
diff --git a/libavcodec/alsdec.c b/libavcodec/alsdec.c index c318ad088e..b3c444c54f 100644 --- a/libavcodec/alsdec.c +++ b/libavcodec/alsdec.c @@ -762,7 +762,7 @@ static int read_var_block_data(ALSDecContext *ctx, ALSBlockData *bd) } for (k = 2; k < opt_order; k++) - quant_cof[k] = (quant_cof[k] * (1 << 14)) + (add_base << 13); + quant_cof[k] = (quant_cof[k] * (1U << 14)) + (add_base << 13); } }
Fixes: signed integer overflow: -210824 * 16384 cannot be represented in type 'int' Fixes: 28670/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5682310846480384 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/alsdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)